New Replacement Laptop CPU Cooling Fan, 4-Pin PWM Cooler Compatible with Lenovo Yoga 720-12IKB 81B5 Notebook, P/N BL0110400776 BL0110400788

This brand-new replacement CPU cooling fan is manufactured to original OEM specifications, perfectly engineered for Lenovo Yoga 720-12IKB (Model 81B5) notebook computers. It corresponds to official part numbers BL0110400776 and BL0110400788, which is the ideal repair part when your original cooling fan malfunctions.

Common fan failures include abnormal rattling noise, stalling or failing to spin, insufficient airflow leading to CPU overheating, thermal throttling, lagging performance and unexpected automatic shutdowns. Installing this replacement fan can fully restore your laptops factory-standard heat dissipation efficiency.

Equipped with standard 4-Pin PWM control interface, the fan supports intelligent automatic speed regulation. It dynamically adjusts rotating speed according to CPU load, balancing outstanding cooling capability and low operating noise during daily office work, web browsing, document editing and multitasking.

Every dimension, mounting hole position, housing shape and power plug interface is consistent with the original fan. No cutting, wiring changes or extra modification is required. Users and maintenance technicians can complete plug-and-play installation conveniently.

Each cooling fan passes strict pre-shipment quality inspection, including continuous rotation testing, noise inspection and connection stability testing. We strictly screen defective products to ensure stable, long-lasting service life after installation. Suitable for personal DIY maintenance, computer repair store replacement and notebook after-sales repair projects.